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  • Which of the following match are correct in earthworm?             I. Pharynx  -   1st segment   &nbsp

Which of the following match are correct in earthworm?

            I. Pharynx  -   1st segment

            II. Stomach -  10th to 14th segment

            IV. Gizzard  - 26th segment

            V. Mouth    - 1st segment

 

Choose the correct option.

Option: 1

I and II

 


Option: 2

II and IV

 


Option: 3

II and IV

 


Option: 4

I and IV


Answers (1)

best_answer

 Alimentary Canal of Earthworm

  • The alimentary canal is a straight tube that runs between the first segment to the last segment of the body of an earthworm.
  • The buccal cavity is situated in 1-3 segments.
  • It is followed by the muscular pharynx.
  • The pharynx is followed by an esophagus in 5-7 segments.
  • It is followed by a muscular gizzard in 8-9 segments.
  • The 9-14 segments contain the stomach.
  • The intestines are the major organs that begin from the 15th segment and continue until the last segment.
  • At segment 26, a pair of intestinal caecae project from the intestine.
  • From segments 26 to 35, the intestine shows a characteristic feature called typhlosole.

 

- Pharynx  -   1st segment, Stomach -  10th to 14th segment

Posted by

Pankaj Sanodiya

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